摘要
通过模型试验和轴对称有限元 无穷元耦合分析 ,研究了软土层中水泥搅拌桩的荷载传递。分析结果表明 ,基础、桩长和垫层对水泥搅拌桩复合地基的荷载传递有较大影响。在软土中桩身上部桩土之间可以产生相对滑移 ,产生相对滑移的深度与桩土模量比有关 ,砂垫层虽能增大桩间土分担比 。
The load transfer of cement?soil pile in soft soil is studied using the finite and infinite element method. It is also studied up the model test. The results show that the foundation, length of pile, and sand cushion can greatly effect on the load transfer. There is relative displacement between the upper part of cement?soil pile and soft soil. It is related to the modular ratio of pile to soil. The effects of the sand cushion on the cement?soil pile are stressed to discussed in the paper. It is found that more loads are carried by the soil when a sand cushion is existed.
出处
《土木工程学报》
EI
CSCD
北大核心
2002年第5期82-86,共5页
China Civil Engineering Journal
关键词
水泥搅拌桩
荷载传递
有限元
无限元
水泥-土桩
砂垫层
finite-element method
infinite-element method
cement-soil pile
load transfer sand
cushion
